نتایج جستجو برای: newtonian liquid

تعداد نتایج: 227498  

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2001
C Denniston E Orlandini J M Yeomans

We describe a lattice Boltzmann algorithm to simulate liquid crystal hydrodynamics. The equations of motion are written in terms of a tensor order parameter. This allows both the isotropic and the nematic phases to be considered. Backflow effects and the hydrodynamics of topological defects are naturally included in the simulations, as are non-Newtonian flow properties such as shear thinning an...

2016
Lijuan Qian Jianzhong Lin Fubing Bao

Atomization spray of non-Newtonian liquid plays a pivotal role in various engineering applications, especially for the energy utilization. To operate spray systems efficiently and well understand the effects of liquid rheological properties on the whole spray process, a comprehensive model using Euler-Lagrangian approaches was established to simulate the evolution of the atomization spray for v...

2004
Pengtao Yue James J. Feng Chun Liu Jie Shen

Drop dynamics plays a central role in defining the interfacial morphology in two-phase complex fluids such as emulsions and polymer blends. In such materials, the components are often microstructured complex fluids themselves. To model and simulate drop behavior in such systems, one has to deal with the dual complexity of non-Newtonian rheology and evolving interfaces. Recently, we developed a ...

Journal: :nanomedicine journal 0
mobin haghdel department of fluid mechanics, shiraz university, shiraz, iran reza kamali department of fluid mechanics, shiraz university, shiraz, iran ali haghdel department of electronics and communication engineering, shiraz university, shiraz, iran zahra mansoori department of physiology, shiraz university, shiraz, iran

objective(s): one applications of nanotechnology is in the area of medicine which is called nanomedicine. primary instruments in nanomedicine can help us to detect diseases and used for drug delivery to inaccessible areas of human tissues. an important issue in simulating the motion of nanoparticles is modeling blood flow as a newtonian or non-newtonian fluid. sometimes blood flow is simulated ...

Journal: :Physical review letters 2001
Y Zhu S Granick

Newtonian fluids were placed between molecularly smooth surfaces whose spacing was vibrated at spacings where the fluid responded as a continuum. Hydrodynamic forces agreed with predictions from the no-slip boundary condition only provided that flow rate (peak velocity normalized by spacing) was low, but implied partial slip when it exceeded a critical level, different in different systems, cor...

Journal: :transport phenomena in nano and micro scales 2014
a.a. abbasian arani g.a. sheikhzadeh a. ghadirian arani

flow field and heat transfer of a nanofluid, whose non-newtonian behavior has been demonstrated in the laboratory, in a square enclosure have been numerically modeled and investigated. to estimate the viscosity of nanofluid, experimental data of hong and kim, 2012 have been used, and a new model has been proposed. finally, the obtained results have been compared to those of newtonian behavior. ...

2010
Konstantina Kostourou Dirk Peschka Andreas Münch Barbara Wagner Stephan Herminghaus Ralf Seemann

The dynamics and morphology of a liquid polystyrene (PS) film on the scale of a hundred nanometer dewetting from a liquid polymethylmethacrylate (PMMA) film is investigated experimentally and theoretically. The polymers considered here are both below their entanglement lengths and have negligible elastic properties. A theoretical model based on viscous Newtonian flow for both polymers is set up...

Journal: :Thermal Science 2022

This investigation is aimed at analysing linear instability of an initial stable jet through the air-sealed electro-centrifugal spinning process which significant in creating nanofibers. Utilising perturbation theory to diminish governing equations, into a 1-D mode with option solving acquired non-linear differential equations. Hence, trajectory power-law fluid during power has been determined....

Journal: :Lab on a chip 2011
Wyatt C Nelson H Pirouz Kavehpour Chang-Jin C J Kim

A micromachined chip capable of generating liquid microfilaments has been developed for a miniature version of the Capillary Breakup Extensional Rheometer (CaBER®). The proposed system is exceptionally simple and compact because liquid samples are actuated by voltages administered on-chip, which therefore requires only electrical connections (rather than a linear motor, an integral part of the ...

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